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pic: SimpleChassis
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If this is for low resource teams, what advantage does this have over the kitbot, or any of the other COTS drivebases out there?
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The brackets used for the eyebolt tensioning system are a little funky. Where would you source those?
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Also, some teams may have opted out of the kitbot, and since then realized that they really needed it. I know that my team thought we were going to be a lot better off this than we actually are, especially in terms of CAD resources. And, some people may just not like the kitbot. Especially this year when we don't know what to expect. So this would be a good alternative for those people, just like the COTs drivebases. Quote:
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Very nice design. Looks like an afternoon project for 1 or 2 people. The chain tensioning set up I have used for many projects and while it does looks crude it works great. GRT has used eye bolts many times. I would add a cross brace at the top but that is my preference. This design would give a team a cheap practice chassis and one to test mechanisms on and save the kit chassis for later if they wanted to. Good work.:)
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Quick Question - Where is the cross strength going to come from? If all of the force is going to that wooden board, where the electronics are ideally mounted, that might not make a pretty sight.
Looks nice though, great way to practice CAD! |
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Also, when the new rules come out, check if those corners are compliant with the bumper rules. Other than that it looks great. |
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When we first built our chassis last year, we tried driving it around without bumpers. Like you said, it was not a pretty sight. Quote:
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Offset the transmission closer together. The main shaft needs to extend so a pulley can be attached outside the plate. This makes it easier to attach a belt without having to take the transmission apart to install/replace the belt.
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Sorry I thought you guys were using a belt |
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After finding last years rules I think I mixed up the "you must have at least 1 inch supported on the bumper corners" with another number (very sorry about that). The bumpers should be fine.
One question, how heavy is it? (just so I can compare it to all the cots drives) |
Re: pic: SimpleChassis
Here is a link to a $8 mill for cutting slots in angle. The amazing thin about a mill like this is it uses no electricity and can fit in pretty much any tool box. It is significantly less danergous that a vertical mill, and can actually do more precise cuts. I took a jewelry and metal smithing calss at Purdue. One of the first assignments was to cut out the profile of Lincoln out of a penny. It was pretty cheap practice and helped showcase the tools skills.
While I couldn't find a picture of a penny, I did find this picture of something similar done to a quarter (much harder metal): While some might think it would take a long time to do such a thing, the lincoln profile took about 35 minutes with a beginner skill level. Sawing a couple straight lines after dilling 2 holes would likely require less time than locating edges in a mill. |
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